Getting Summer-Ready: A Doctor's Guide to Energy, Focus and Resilience Through the Busy Months

As a GP, the months between May and September are when I see a particular kind of tiredness in clinic. It isn't the dark, heavy fatigue of winter. It's a scattered, wired kind of tiredness — patients who have plenty going on, who should feel energetic given the lighter mornings and warmer weather, but who feel oddly depleted by mid-July.

The reason is usually clear once we talk it through. Summer doesn't slow life down; it speeds it up. Kids are out of school, holidays need planning, fitness ambitions resurface, social diaries fill, and the longer days seduce us into later bedtimes. The biology, meanwhile, is dealing with heat, dehydration, shifted sleep timings and — for many — a different eating pattern from the rest of the year.

The good news is that the fundamentals of feeling well through summer are not glamorous, not expensive, and almost entirely in your own control. This is the framework I share with my patients, distilled into the seven things that actually move the needle.

1. Sleep is the lever, even when daylight fights you

If I could only change one thing in a tired patient's routine, it would always be sleep. The published guidelines suggest most adults need seven to nine hours, and the evidence connecting consistent sleep to almost every measurable health outcome — metabolic, cognitive, immune — is among the strongest we have in lifestyle medicine.

Summer makes this harder. Longer daylight pushes melatonin later. Warm bedrooms disrupt the gentle core-temperature drop that initiates sleep. Alcohol consumption rises with the social calendar, and even moderate amounts fragment the deep, restorative phases. Travel adds time-zone shifts and unfamiliar beds.

The practical adjustments I recommend:

• Anchor your wake time even if your bedtime drifts. Consistent waking is what stabilises circadian rhythm.
• Cool the bedroom to around 18°C and keep it dark — blackout curtains earn their keep in June and July.
• Get morning light within an hour of waking. Ten minutes outside, no sunglasses, does more for sleep that night than most sleep tracking apps.
• Cut alcohol earlier in the evening, or skip it on training days.

Magnesium is the most-studied mineral in this space. Magnesium contributes to normal psychological function and to a reduction of tiredness and fatigue — both authorised under EU/UK nutrition regulations, and both directly relevant to wind-down and recovery. Magnesium glycinate is the form I most often recommend to patients who want a well-tolerated option that doesn't disturb the gut. Our Magnesium Glycinate sits in this category.

2. Move consistently, not heroically

Summer is when the "I'll start training again" conversation reappears in clinic. The pattern I see most often is a burst of effort — three gym sessions in a week, a long ride at the weekend — followed by injury, fatigue or simply quiet abandonment.

The published evidence is unambiguous: consistency beats intensity for sustained energy and metabolic health. The NHS guideline of 150 minutes of moderate activity per week, or 75 minutes of vigorous, is achievable for almost anyone. Two strength sessions a week, even bodyweight, materially preserves muscle and bone health into later decades.

If you are returning to fitness after a quieter spring, my advice is the same I give my own patients: start at half what you think you can do, and add 10% per week. The patients who keep going are not the ones who train hardest in week one; they are the ones still training in week eight.

3. Hydrate, and remember the minerals

UK summer dehydration is more real than people credit — partly because we underestimate fluid loss when temperatures only sit in the low twenties, and partly because we substitute coffee, tea and alcohol for water without registering the diuretic effect.

The simple marker is urine colour: pale straw is the target, anything darker is a signal to drink. For most adults, two to three litres a day in summer, more if you are exercising or outdoors for sustained periods.

What's often missed is that hydration isn't just water — it's water plus the electrolytes that allow your cells to actually use it. Magnesium contributes to normal energy-yielding metabolism, normal muscle function and normal electrolyte balance. If you exercise regularly in warm weather, a magnesium-rich diet (leafy greens, nuts, seeds, dark chocolate) supports recovery; targeted supplementation can fill the gap when diet doesn't quite get you there.

4. Eat to fuel, not to deplete

Summer eating patterns shift, often without us noticing. Long lunches, lighter meals, more carbohydrate-heavy convenience food on the go, less consistent protein. The result is the classic mid-afternoon energy crash — a blood-sugar pattern more than a fatigue pattern.

Two practical anchors:

• Protein at every meal — roughly a palm-sized portion. This is the single biggest lever for steady energy and for preserving muscle mass alongside any fitness programme.
• Eat the rainbow — varied plant colours through the week deliver the spectrum of micronutrients no single "superfood" can. Berries, leafy greens, peppers, beetroot, citrus, tomatoes.

If you are eating consistently well, you may not need much in the way of supplementation. If you are eating like most busy adults actually eat in summer — that is, irregularly — sensible targeted supplementation makes a measurable difference.

5. Mind the cognitive load

The fatigue I see most in summer isn't physical — it's mental. Mental load is the silent tax of running a household, a career and a holiday calendar simultaneously. It shows up as physical tiredness, but its source is cognitive.

The simple interventions that help, from my own consultations:

• Daily decompression — twenty minutes, no screens, ideally outside. Walking counts. So does sitting in the garden with a cup of tea.
• Single-tasking windows — even one hour a day where your attention is on one thing.
• Off-load logistics — shared family calendars, packing lists, lift schedules. The mental admin of a busy summer is not a moral failing to push through.

Traditional herbal use has long associated certain adaptogens — shilajit, ashwagandha, reishi — with resilience to stress and a sense of vitality. The mechanisms here are interesting and the subject of ongoing research; I would frame them as a complement to the lifestyle work above, not a substitute. Our Shilajit Complex combines five of these traditional adaptogen ingredients in a single doctor-designed formula.

6. Get the sun, sensibly

I rarely say this in winter, but in summer: get outside in the morning. Ten to thirty minutes of natural light within an hour of waking is the single best circadian anchor we have, and it's free.

Two important caveats. First, SPF on exposed skin from late morning onwards, every day — UV damage is cumulative and dose-dependent. Second, while sunlight supports vitamin D synthesis, UK latitude and indoor lifestyles mean a meaningful proportion of adults still benefit from oral supplementation, particularly outside the peak summer months. If you are unsure, a GP can arrange a vitamin D test.

7. Targeted supplementation: where it earns its place

I'm a GP, so my framing is conservative. Supplements support a routine that is already broadly sensible; they don't compensate for a routine that isn't. With that caveat, there are a handful of compounds with either authorised nutrition claims or a serious published evidence base, where targeted supplementation is reasonable for adults wanting to support energy, recovery and resilience.

• Magnesium — authorised contributions to normal muscle function, normal nervous-system function, normal psychological function, reduction of tiredness and fatigue, and normal energy-yielding metabolism. Genuinely useful, well tolerated, particularly in the glycinate form. (Little Ox Magnesium Glycinate.)
• NMN (β-Nicotinamide Mononucleotide) — the most direct oral precursor to NAD+, the coenzyme involved in cellular energy metabolism. Described factually rather than with health claims under UK regulation. The published research is rapidly evolving; we summarise the current evidence in our blog post NMN and Longevity. (Little Ox NMN Pure is our single-ingredient 500mg β-NMN; NMN Plus, which combines β-NMN with trans-resveratrol, is currently on pre-order with shipping from 10 June.)
• Vitamin C — authorised contributions to normal collagen formation, normal immune function and a reduction of tiredness and fatigue. Included in our Collagen Complex 5-in-1 alongside marine collagen, biotin and trans-resveratrol.
• Adaptogens — traditional herbal ingredients (shilajit, ashwagandha, reishi, lion's mane, maca) bundled in our Shilajit Complex. Described factually; the published mechanistic research is interesting and ongoing.

My own summer routine

Patients sometimes ask what I do. For transparency: I take NMN Plus in the morning with a small breakfast, magnesium glycinate before bed, and I prioritise three things that I find make the biggest difference to how I feel — getting outside within an hour of waking, eating protein with every meal, and being in bed by 10:30pm on weeknights regardless of what's on television. Nothing exotic. The boring habits compound.

Summer should be the season you feel best. With a sensible framework, it usually is.

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This article is for general information and is not medical advice. If you have specific health concerns, an ongoing condition, or are taking prescription medication, please consult your GP before starting any new supplement regime.